Publications

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2011
Kehr, S.C., Y.M. Liu, L.W. Martin, P. Yu, M. Gajek, S.-Y. Yang, C.-H. Yang, M.T. Wenzel, R. Jacob, H.-G. von Ribbeck, M. Helm, X. Zhang, L.M. Eng, and Ramamoorthy Ramesh. "Near-field examination of perovskite-based superlenses and superlens-enhanced probe-object coupling." Nature Communications 2 (2011).
Maksymovych, P., M. Pan, P. Yu, Ramamoorthy Ramesh, A.P. Baddorf, and S.V. Kalinin. "Scaling and disorder analysis of local I-V curves from ferroelectric thin films of lead zirconate titanate." Nanotechnology 22 (2011).
Chang, H., S.V. Kalinin, S. Yang, P. Yu, S. Bhattacharya, P.P. Wu, N. Balke, S. Jesse, L.Q. Chen, Ramamoorthy Ramesh, S.J. Pennycook, and A.Y. Borisevich. "Watching domains grow: In-situ studies of polarization switching by combined scanning probe and scanning transmission electron microscopy." Journal of Applied Physics 110 (2011).
2010
Yang, S.Y., J. Seidel, S.J. Byrnes, P. Shafer, C.-H. Yang, M.D. Rossell, P. Yu, Y.-H. Chu, J.F. Scott, J.W. Ager, L.W. Martin, and Ramamoorthy Ramesh. "Above-bandgap voltages from ferroelectric photovoltaic devices." Nature Nanotechnology 5 (2010) 143-147.
Langner, M.C., C.L.S. Kantner, Y.H. Chu, L.M. Martin, P. Yu, Ramamoorthy Ramesh, and J. Orenstein. "Effective thermal boundary resistance from thermal decoupling of magnons and phonons in SrRuO3 thin films." Physical Review B - Condensed Matter and Materials Physics 82 (2010).
Lee, J.-S., D.A. Arena, P. Yu, C.S. Nelson, R. Fan, C.J. Kinane, S. Langridge, M.D. Rossell, Ramamoorthy Ramesh, and C.-C. Kao. "Hidden magnetic configuration in epitaxial La1-xSr xMnO3 films." Physical Review Letters 105 (2010).
Yu, P., J.-S. Lee, S. Okamoto, M.D. Rossell, M. Huijben, C.-H. Yang, Q. He, J.X. Zhang, S.Y. Yang, M.J. Lee, Q.M. Ramasse, R. Erni, Y.-H. Chu, D.A. Arena, C.-C. Kao, L.W. Martin, and Ramamoorthy Ramesh. "Interface ferromagnetism and orbital reconstruction in BiFeO 3-La0.7Sr0.3MnO3 heterostructures." Physical Review Letters 105 (2010).
Borisevich, A.Y., O.S. Ovchinnikov, H.J. Chang, M.P. Oxley, P. Yu, J. Seidel, E.A. Eliseev, A.N. Morozovska, Ramamoorthy Ramesh, S.J. Pennycook, and S.V. Kalinin. "Mapping octahedral tilts and polarization across a domain wall in BiFeO3 from Z-contrast scanning transmission electron microscopy image atomic column shape analysis." ACS Nano 4 (2010) 6071-6079.
Valvidares, S.M., M. Huijben, P. Yu, Ramamoorthy Ramesh, and J.B. Kortright. "Native SrTiO3 (001) surface layer from resonant Ti L 2,3 reflectance spectroscopy." Physical Review B - Condensed Matter and Materials Physics 82 (2010).
Arenholz, E., G. Van Der Laan, A. Fraile-Rodríguez, P. Yu, Q. He, and Ramamoorthy Ramesh. "Probing ferroelectricity in PbZr0.2 Ti0.8 O 3 with polarized soft x rays." Physical Review B - Condensed Matter and Materials Physics 82 (2010).
Holcomb, M.B., L.W. Martin, A. Scholl, Q. He, P. Yu, C.-H. Yang, S.Y. Yang, P.-A. Glans, M. Valvidares, M. Huijben, J.B. Kortright, J. Guo, Y.-H. Chu, and Ramamoorthy Ramesh. "Probing the evolution of antiferromagnetism in multiferroics." Physical Review B - Condensed Matter and Materials Physics 81 (2010).
Wu, S.M., S.A. Cybart, P. Yu, M.D. Rossell, J.X. Zhang, Ramamoorthy Ramesh, and R.C. Dynes. "Reversible electric control of exchange bias in a multiferroic field-effect device." Nature Materials 9 (2010) 756-761.
Borisevich, A.Y., H.J. Chang, M. Huijben, M.P. Oxley, S. Okamoto, M.K. Niranjan, J.D. Burton, E.Y. Tsymbal, Y.H. Chu, P. Yu, Ramamoorthy Ramesh, S.V. Kalinin, and S.J. Pennycook. "Suppression of octahedral tilts and associated changes in electronic properties at epitaxial oxide heterostructure interfaces." Physical Review Letters 105 (2010).
2009
Seidel, J., L.W. Martin, Q. He, Q. Zhan, Y.-H. Chu, A. Rother, M.E. Hawkridge, P. Maksymovych, P. Yu, M. Gajek, N. Balke, S.V. Kalinin, S. Gemming, F. Wang, G. Catalan, J.F. Scott, N.A. Spaldin, J. Orenstein, and Ramamoorthy Ramesh. "Conduction at domain walls in oxide multiferroics." Nature Materials 8 (2009) 229-234.
Yang, C.-H., J. Seidel, S.Y. Kim, P.B. Rossen, P. Yu, M. Gajek, Y.H. Chu, L.W. Martin, M.B. Holcomb, Q. He, P. Maksymovych, N. Balke, S.V. Kalinin, A.P. Baddorf, S.R. Basu, M.L. Scullin, and Ramamoorthy Ramesh. "Electric modulation of conduction in multiferroic Ca-doped BiFeO 3 films." Nature Materials 8 (2009) 485-493.
Chu, Y.-H., Q. He, C.-H. Yang, P. Yu, L.W. Martin, P. Shafer, and Ramamoorthy Ramesh. "Nanoscale control of domain architectures in BiFeO 3 thin films." Nano Letters 9 (2009) 1726-1730.
Langner, M.C., C.L.S. Kantner, Y.H. Chu, L.M. Martin, P. Yu, J. Seidel, Ramamoorthy Ramesh, and J. Orenstein. "Observation of ferromagnetic resonance in SrRuO3 by the time-resolved magneto-optical Kerr effect." Physical Review Letters 102 (2009).
Maksymovych, P., S. Jesse, P. Yu, Ramamoorthy Ramesh, A.P. Baddorf, and S.V. Kalininl. "Polarization control of electron tunneling into ferroelectric surfaces." Science 324 (2009) 1421-1425.
2008
Balke, N., P. Yu, L.-P. Wang, and Ramamoorthy Ramesh. "CH003: Stability of nanodots in ferroelectric thin films." IEEE International Symposium on Applications of Ferroelectrics. Vol. 1. 2008.
Huijben, M., L.W. Martin, Y.-H. Chu, M.B. Holcomb, P. Yu, G. Rijnders, D.H.A. Blank, and Ramamoorthy Ramesh. "Critical thickness and orbital ordering in ultrathin La0.7 Sr0.3 MnO3 films." Physical Review B - Condensed Matter and Materials Physics 78 (2008).
Chu, Y.H., Q. Zhan, C.-H. Yang, M.P. Cruz, L.W. Martin, T. Zhao, P. Yu, Ramamoorthy Ramesh, P.T. Joseph, I.N. Lin, W. Tian, and D.G. Schlom. "Low voltage performance of epitaxial BiFeO3 films on Si substrates through lanthanum substitution." Applied Physics Letters 92 (2008).
Martin, L.W., Y.-H. Chu, M.B. Holcomb, M. Huijben, P. Yu, S.-J. Han, D. Lee, S.X. Wang, and Ramamoorthy Ramesh. "Nanoscale control of exchange bias with BiFeO 3 thin films." Nano Letters 8 (2008) 2050-2055.
2007
Chu, Y.-H., M.P. Cruz, C.-H. Yang, L.W. Martin, P.-L. Yang, J.-X. Zhang, K. Lee, P. Yu, L.-Q. Chen, and Ramamoorthy Ramesh. "Domain control in multiferroic BiFeO3 through substrate vicinality." Advanced Materials 19 (2007) 2662-2666.

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